Murphy saw Lucas.
He appeared to have fallen unconscious and was bound at one corner of a hexagram magic circle.
"Voldemort." Murphy looked at Harry. "What are you trying to do? Surely you're not actually resurrecting Slytherin?"
"Ah, Slytherin." Harry smiled. "I did indeed borrow his ritual."
As he spoke, he pointed at the pottery coffin beside him. "He's in there."
Murphy looked toward the coffin. His gaze pierced through the ceramic barrier, revealing a mummified corpse within.
At that moment, flesh and blood were rapidly growing over the corpse as magic poured into it. At the same time, an immensely deep passage opened behind it. When Murphy looked inside, he seemed to see an endless desert, a deathly silent ocean, and a fortress looming indistinctly through the mist. Beyond them, he saw a shadow.
The shadow was crawling darkly along the passage carved open with the magic and lives of the students. From the Spirit World, from some unknown distance away, it was crossing the divide between life and death, attempting to return to the material world.
"This Chamber of Secrets was Slytherin's masterpiece. He linked a small portion of the Spirit World to the material world and placed his body inside this chamber."
"As long as there was enough power, the barrier between the present world and the Spirit World could be broken. With a small coordinate added in, he could locate his own position from within the Spirit World and use that magical passage to return here."
"Of course, countless complex Dark Arts are involved, and even I can't fully understand them. But he's about to succeed."
"When they founded the school, they chose a place where magic was at its most active. Such places were usually closer to the Spirit World, which was why Slytherin built